The age of three sisters are consecutive integers. The sum of their ages is 45. Calculate their ages.

The first sister is 14 the second sister is 15 and the third sister is 16

45-3=42

42 divided by 3 equals 14

14+1=15+1=16

14+15+16=45

Consecutive means right after each other like 1, 2, 3, 4 ... so if the first sister is x old, then sister 2 is (x+1) old and sister 3 is (x+2) old. So make an equation that says x + (x+1) + (x+2) = 45. Simplify and solve for x (get x alone.)